[comp.lang.fortran] Program Analyzer?

ndeng@EULER.BERKELEY.EDU (06/12/90)

Can somebody give me a pointer on where I can find a Fortran program analyzer
which could draw the subroutine calling trees, analyze the do-loop occurance,
etc.? I would prefer PD on an anonymous ftp site, but even information of 
commercial package is welcomed. 

Thanks in advance.

Mike
ndeng@euler.berkeley.edu